如何获得 Python 程序的执行时间? [英] How do I get time of a Python program's execution?
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问题描述
我有一个 Python 命令行程序,需要一段时间才能完成.我想知道完成运行所需的确切时间.
I have a command line program in Python that takes a while to finish. I want to know the exact time it takes to finish running.
我查看了 timeit
模块,但它似乎只适用于小代码片段.我想为整个程序计时.
I've looked at the timeit
module, but it seems it's only for small snippets of code. I want to time the whole program.
推荐答案
在 Linux 或 Unix 中:
In Linux or Unix:
$ time python yourprogram.py
在 Windows 中,请参阅此 StackOverflow 问题:如何在 Windows 命令行上测量命令的执行时间?
In Windows, see this StackOverflow question: How do I measure execution time of a command on the Windows command line?
对于更详细的输出,
$ time -v python yourprogram.py
Command being timed: "python3 yourprogram.py"
User time (seconds): 0.08
System time (seconds): 0.02
Percent of CPU this job got: 98%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.10
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 9480
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 1114
Voluntary context switches: 0
Involuntary context switches: 22
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
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